TDA2320A
STEREO AMPLIFIER
.
.WIDE SUPPLY VOLTAGE RANGE (3 to 36V)
.SINGLE OR SPLIT SUPPLY OPERATION VERY LOW CURRENT CONSUMPTION
.(0.8mA)
.VERY LOW DISTORTION NO POP-NOISE
N
DIP8
(Plastic Package)
DESCRIPTION
The TDA2320A is a stereo class A preamplifier intended for application in portable cassette players and high quality audio systems.
The TDA2320A is a monolithic integrated circuit in a 8 lead plastic dip.
PIN CONNECTIONS (top view)
ORDER CODES
Part Number |
Temperature |
Package |
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Range |
N |
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TDA2320A |
-40oC, +105oC |
• |
Output 1 |
1 |
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8 |
VCC |
Inve rting Input 1 |
2 |
- |
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7 |
Output 2 |
Non-inve rting Input 1 |
3 |
+ |
- |
6 |
Inve rting Input 2 |
GND |
4 |
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+ |
5 |
Non-inve rting Input 2 |
October 1997 |
1/12 |
TDA2320A
SCHEMATIC DIAGRAM (1/2 TDA2320A)
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Inverting |
Non-inverting |
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Input |
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Input |
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VCC |
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R1 |
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R3 |
R5 |
R6 |
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Q3 |
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Q6 |
Q8 |
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Q11 |
Q13 |
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D3 |
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R7 |
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D5 |
Q14 |
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Q9 |
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Output |
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Q4 |
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R8 |
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Q2 |
Q5 |
Q7 |
C2 |
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Q16 |
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Q12 |
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Q15 |
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D1 |
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Q17 |
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Q1 |
D4 |
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Q10 |
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D2 |
C1 |
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R4 |
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R2 |
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GND |
ABSOLUTE MAXIMUM RATINGS |
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Symbol |
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Parameter |
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Value |
Unit |
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VCC |
Supply Voltage |
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36 |
V |
Ptot |
Total Power Dissipation at Tamb = 70oC |
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400 |
mW |
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Tstg, Tj |
Storage and Junction Temperature |
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±40 to 150 |
oC |
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2/12
TDA2320A
ELECTRICAL CHARACTERISTICS
VCC = 15V, Tamb = 25oC (unless otherwise specified) (refer to the test circuits)
Symbol |
Parameter |
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Min. |
Typ. |
Max. |
Unit |
VCC |
Supply Voltage (*) |
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3 |
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36 |
V |
ICC |
Supply Current (*) |
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0.8 |
2 |
mA |
Iib |
Input Bias Current |
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150 |
500 |
nA |
Vio |
Input Offset Voltage |
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mV |
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Rs ≤ 10kΩ |
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1 |
5 |
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Iio |
Input Offset Current |
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10 |
50 |
nA |
Avd |
Open Loop Voltage Gain |
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80 |
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dB |
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VCC = 15V |
f = 333Hz |
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f = 1kHz |
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70 |
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f = 10kHz |
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50 |
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VCC = 4.5V |
f = 1kHz |
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70 |
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VOPP |
Output Voltage Swing (f = 1kHz, RL = 600Ω) (*) |
VCC = 15V |
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13 |
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V |
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VCC = 4.5V |
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2.5 |
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GBP |
Gain-bandwidth Product |
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MHz |
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f = 20kHz |
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1.5 |
2.5 |
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FBP |
Power Bandwidth (*) |
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kHz |
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Vo = 5VPP, THD = 1% |
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40 |
70 |
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SR |
Slew Rate (*) |
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1 |
1.6 |
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V/μs |
THD |
Distortion (Vo = 2V, AV = 20dB) (*) |
f = 1kHz |
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0.03 |
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% |
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f = 10kHz |
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0.08 |
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en |
Equivalent Input Noise Voltage (**) |
Rs = 50Ω |
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1 |
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μV |
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Curve A |
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Rs = 600Ω |
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1.1 |
1.4 |
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Rs = 5kΩ |
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1.5 |
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B = 22Hz to 22kHz |
Rs = 50Ω |
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1.3 |
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Rs = 600Ω |
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1.5 |
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Rs = 5kΩ |
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2 |
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f = 1kHz |
Rs = 600Ω |
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9 |
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nV```√ Hz |
VO1/V02 |
Channel Separation (**) |
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dB |
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f = 1kHz |
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100 |
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SVR |
Supply Voltage Rejection Ratio(**) |
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dB |
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f = 100Hz |
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80 |
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(*) Test circuit of figure 1 (**) Test circuit of figure 2
3/12
TDA2320A
TYPICAL APPLICATION
STEREO PREAMPLIFIER FOR CASSETTE PLAYERS
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18kΩ |
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VCC |
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22μF |
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0.1μF |
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82kΩ |
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4.7μF |
5 |
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0.3mV |
8 |
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μ |
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TAPE |
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220pF |
1/2 |
1 F |
100kΩ |
7 |
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HEAD |
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TDA2320A |
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6 |
4 |
20kΩ |
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180kΩ |
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150Ω |
15kΩ |
10nF |
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22μF |
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18kΩ |
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22μF |
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Ω |
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82k |
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4.7μF |
3 |
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0.3mV |
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TAPE |
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220pF |
1/2 |
1μF |
100kΩ |
1 |
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HEAD |
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TDA2320A |
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20kΩ
2
180kΩ
15kΩ 10nF
150Ω
22μF
TEST CIRCUITS |
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Figure 1 |
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Figure 2 |
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22μF |
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VCC |
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+7.5V |
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18kΩ |
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0.1μF |
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0.1μF |
Ω |
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82k |
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0.22μF |
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220pF |
1/2 |
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IN |
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OUT |
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1μF |
R s |
TDA2320A |
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220pF |
1/2 |
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100kΩ |
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OUT |
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TDA2320A |
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22k |
Ω |
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0.1μF |
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Rx |
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-7.5V |
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150Ω |
3.3kΩ |
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33Ω |
μ |
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47 F |
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4/12
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